And two egg whites
Two "extra" egg whites will help the eggs foam up a lot. Beat at high power for at least 5 minutes
Brown sugar
It is best if you add it in two batches. Add one half while still beating, and when it is well combined, the other half
It should have a very whipped texture
In pastry it is called relief point
4. Add chocolate
With the eggs and sugar in relief, add the reserved chocolate along one side of the bowl, to prevent the mixture from collapsing